---I have finished my homework already, mum.--- When ________ you ________ it?

---It’s raining! When did it start?---I don’t know exactly. In fact, it ____ all this afternoon. 

I would like to buy the black pen because I ___ that kind of pen ____ well. 

Every year lots of trees ________ to make our country more beautiful.

---I have finished my homework already, Mum.--- When ________ you ________ it?

I don’t know if he_________here. If he ___________tomorrow, I will tell you.

—Why is the classroom so dirty?—Sorry，sir. It       yesterday, We forgot to do it.

If he had a map, he _____ get lost in the mountains.

--- Is there anything special in the newspaper today?--- Yes. People who drink wine ___ to drive after May Day.

--- I’ve got the final Harry Potter book.--- You will love it. I ____it twice already.

The teacher asked the students ________.

—Look, what have you done?—Sorry. I think if I _____ another chance, I’ll do it better.

No one knew what        because of the thick fog.

-------Where        you        ?------I        the teacher’s office.

Millie ran back to school because she        her magazine in the classroom.

There        a fashion show next week, isn’t there?

Mary ______ in Beijing since 2008.

— How was your day off during the Qingming Festival?— Pretty good! We         Xu Xiaoxuan’s former home.

My hometown ______ a lot  in the past ten years.

– Do you know _________?-- Yes, I do. She came here on foot.